When you use Mega 360 are you slow trolling? Wife and I do a lot of slow trolling and some brush pile fishing, I can see it would be great for fishing brush piles but when we are slow trolling we run about .6 to 1 mph, I heard its not very clear when the boat is moving. Also does the 360 transducer replace the transducer that came with my Helix 9 mega DI SI?
Thanks,

